Hair-cutting apparatus.



No. 628,002. Patented July 4, |899.

. C.*HASCH.. HAIR CUTTING APPARATUS.

l(Application led June 27,1898.)

(No Model.) v

UNITED STATES,

PATENT OFFICE.

CHRISTIAN HAscH, oF STUTTGART, GERMANY:

,HAIR-'comme APPARATUS;l

` SPECIFICATION 'forming part, gf Letters Patent No. 628,002, date. .my 4 1., 189s. Application filed Tune Z7, 1898. Serial No. 684,579. (No model.) l

To all 071/0712, it Nui/y.concer/zaI Be it known that I, CHRISTIAN HASCH, a citizen of the Empire of Germany, residingv at Kleine Schweiz 6, Stuttgart, in the Kingdom of Viirtemberg, Germ any, have invented certain new and useful Improvements in Hair- Cutting Apparatus, of which the following is a full, clear, and exact specification.

Vith the so-called American hair-cutting apparatus at present employed in order that diiferent lengths of hair can be cut with one apparatus fastening-in combs are provided varying in height or size and having a division of teeth amounting to double the distance of theknife. These fastening-in combs are placed beneath the stationary or under knife and passed with their teeth onto the separate blades of the under knife and are then held fast by means of any kind of a fastening. The unsuitableness of these devices for fastening-in combs consists in that between every two teeth of the fasteningin comb there comes a knife-tooth of the under knife, so that on the hair being pushed between the knife-teeth part of the hair curls around, and it becomes impossible to cut an even length of hair. Further, the fastening and loosening of the combs is a tedious operation and causes waste of time.

My new arrangement for cutting hair of any desired length consists in the under knife being made so as to be easily interchangeable with others and so adapted as to fasten itself automatically. It is provided with teeth corresponding in height to the desired length of hair. Such a hair-cutting apparatus, with easily-interchangeable lower knives, is shown in the accompanying drawings, in which- Figure l is an elevation, partly in section. Fig. 2 is a bottom plan view with the handle portions brokenoff orin section; Fig. 3, a side view; Fig. 4,.a further bottom plan view of the apparatus with the lower knife removed. Fig. 5 shows an upper View of the lower knife. Figs. 6 and 7 are cross-sections through two lowerknives having teeth of different heights.

The general arrangement of theY hair-cutting apparatus is the same as that of those at present in 'common use. Both knives are mounted in a bed-plate d', which forms one piece with the handle D. The second handle B is pivoted on a screwed pin C, which passes through the plate d and is held fast in the desired position in the well-known manner by a spring. Instead, however, of the screw C passing through the lower4 knife E the head c' of the screw C is iixed in a recess e', formed in the upper surface of the lower or'statioril ary knife E, Figs. l, 6, and 7. Thelatter is inserted with its beveled edges c2 in correa spondingly-formed guides or grooves in the junction-pieces D' of the bed-plate d and is held fast automatically by means of a thumbplate catch consisting of a spring F, held fast, by means of the screw C, against the plate d' and having a projection fto snap into a hole or recess 0 in the lower knife E. The movable upper knife A is guided in the well-known manner by means of its slots ct fitting on the projections d of the plate d and is moved by the arm ZJ of the handle B, which engages in the notcha ofthe upper knife A. Bydrawing the pressure-plate G more or less tightly by means of, the winged 'nut c, which rests upon a spring support disk, the knives may be pressed more 'or less strongly with an elastic pressure one against the other, the same as in the ordinary apparatus at present invuse.

If it be wished by means of the 'same cutting apparatus to cut hair to differentlengths, an under knife E having a corresponding size of knife-teeth c is selected and inserted. For this purpose the thumb-plate or spring F only requires to be pressed up by its projecting end to bring its projection f out of the aperture o of the lower knife E. The teeth e of the lower knife E have a conical crosssection at their underneath part, so that the hair can easily get between the teeth e and be thus prevented from twisting around, as no obstacle exists against which it can come in contact.

l-Iaving now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is- ,j

l. The combination, in a hair-cutting machine, ofa movable knife, and a number of interchangeable stationary knives adapted to Vary the lengths to which the hair is to be cut.

2. The combination, in a hair-cutting machine, of a movable knife, and a series of interchangeable stationary knives having teeth IOO s i '628,002 A corresponding in size to the different lengths to Whichthe' hair is to be cut.

5. The combination, in a hair-cutting machine, of a movable knife, and a series of lower interchangeable stationary knives having teeth of different heights.

4. The combination, `in a hair-cutting machine, of a movable knife, a removable or detachable stationary knife, and means for automatically securing the latter in place on the insertion thereof. f

5. The combination, in a hair-cutting inachine, of a movable knife, a removable or detachable stationary knife, and a thumb-plate automatically engaging said stationary knife on insertion thereof.

6. The combination, in a hair-cutting machine, of the handle portion D and plate d',

in one piece, the handle portion B, and theV headed screw C on which the same is pivoted, the movable knife, and means for operating i the same, the removable stationary knife re- XVitnesses:

AUGUST DRAUTZ, WM. HAHN. 

